Browsing PhD Theses Collection by Title
Now showing items 955-974 of 1148
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Screening for Mental Health Difficulties in Looked After Children referred to a Specialist CAMHS Team using the Strengths and Difficulties Questionnaire: a Mixed Methods Study
(2018-10-22)Looked after children (LAC) are at high risk of developing mental health difficulties. In England, 45 percent meet the criteria for psychiatric diagnosis (Ford, Vostanis, Meltzer & Goodman, 2007), while levels of emotional ... -
A Search for High-Redshift Radio Galaxies Within the Epoch of Reionization
(University of Hertfordshire, 2013-06-07)In this thesis I used a sample of radio galaxies with 1.4GHz radio luminosity, S1.4 > 10mJy, with the aim of finding high-redshift radio galaxies in the Lockman Hole, ELAIS-N1, ELAISN2, XMM-LSS and CDFS using near-infrared ... -
Searching for Brown Dwarf Companions
(2009-06-03)In this thesis I present the search for ultracool dwarf companions to main sequence stars, subgiants and white dwarfs. The ultracool dwarfs identified here are benchmark objects, with known ages and distances. The online ... -
Securing the Edges of IoT Networks: a Scalable SIP DDoS Defense Framework with VNF, SDN, and Blockchain
(2021-02-19)An unintended consequence of the global deployment of IoT devices is that they provide a fertile breeding ground for IoT botnets. An adversary can take advantage of an IoT botnet to launch DDoS attacks against telecommunication ... -
Security and Usability of Authentication by Challenge Questions in Online Examination
(2017-05-12)Online examinations are an integral component of many online learning environments and a high-stake process for students, teachers and educational institutions. They are the target of many security threats, including ... -
Seeking to Control Enterprise with Architecture: the Limits and Value of an Engineering Approach From the Perspective of an Enterprise Architect
(2017-02-02)In this thesis, I challenge assumptions underlying my discipline of enterprise architecture that led to two choices facing practitioners: either to work with tools and techniques which predict and control changes towards ... -
Self-Management, Psychological Correlates, and Clinical Outcomes in People on Dialysis for End Stage Renal Disease
(2016-04-14)The thesis that this dissertation aims to defend is: Certain self-management behaviours in End Stage Renal Disease are predicted by self-efficacy, patient activation, and psychological distress, and in turn predict clinical ... -
Self-Motivated Composition of Strategic Action Policies
(2018-06-11)In the last 50 years computers have made dramatic progress in their capabilities, but at the same time their failings have demonstrated that we, as designers, do not yet understand the nature of intelligence. Chess playing, ... -
Self-Organised Task Differentiation in Homogeneous and Heterogeneous Groups of Autonomous Agents
(2012-09-27)The field of swarm robotics has been growing fast over the last few years. Using a swarm of simple and cheap robots has advantages in various tasks. Apart from performance gains on tasks that allow for parallel execution, ... -
Self-Stigmatization and Ageism Amongst Older People Accessing Mental Health Services
(2009-06-03)The aim of this novel piece of research was to explore experiences of self-stigma amongst a group of older people (aged 65+) currently using mental health services. In order to try and identify possible contributing ... -
Semantic Memory Impairments in Schizophrenia: A Neuropsychological Study to Evaluate Competing Theories
(2008-11-04)Abstract People with a diagnosis of schizophrenia have been found to perform poorly on tasks assessing semantic memory, and these impairments have been proposed to be related to certain symptoms, in particular Formal ... -
Semicarbazide-sensitive Amine Oxidase (SSAO) and its Interaction with Lysyl Oxidase (LOX) in Rat Aortic Vascular Smooth Muscle Cells
(2022-03-11)Introduction: Semicarbazide-sensitive amine oxidase (SSAO) is both a soluble and membrane bound transmembrane protein expressed in the vasculature. In endothelial cells, SSAO is involved in leukocyte rolling, adhesion, and ... -
Senior Executives and the Emergence of Local Responsibilities in Large Organisations: A Complexity Approach to Potentially Better Results
(2010-06-30)All executives strive for better results in their organisations. They are always dependent on others to achieve these results and this dependency is particularly evident in large organisations. This thesis is concerned ... -
Senior Selection Interviewing: From Individual Skill and Intuition to Habitus and Practice
(2010-09-15)Research into choosing individuals to fill positions at or near board level in organisations is scarce; however we know that interviewing is the dominant selection practice. The research into selection interviewing at ... -
Sensitivity of Simulated Boundary-Layer Flow to the Representation of Forest Canopies in Complex Terrain
(2022-04-19)Complex terrain covers a large fraction of the land surface of the Earth. Due to the limited uses of steeply sloped terrain a lot of this is undeveloped and often covered with a canopy of trees or shrubs. Vegetation canopies ... -
Sentosa : a feminist ethnography of a psychiatric hospital in Sarawak, East Malaysia
(University of Hertfordshire, 2002)This doctoral thesis is a feminist ethnographic study of psychiatric patients in the State of Sarawak, East Malaysia. The study took place at a psychiatric hospital located in the capital city of Kuching, commencing in ... -
Sex Differences in Cognition in Alzheimer's Disease
(University of Hertfordshire, 2014-01-14)Inspection of the published research shows that sex differences in cognition in the general population have been widely cited with the direction of the advantage depending on the domain being examined. The most prevalent ... -
Shattered Narratives and the Search for Meaning: The Experiences of Parents Whose Child Sustains Traumatic Brain Injury
(2009-08-05)This study looked in detail at the parental experience of having a child sustain traumatic brain injury (TBI); beginning with the child sustaining the injury, through the acute and chronic stages of rehabilitation, to the ... -
Shells, Bubbles and Holes: the Porosity of the Interstellar Medium in Galaxies
(2012-10-08)We present an analysis of the properties of HI holes detected in 20 galaxies that are part of “The HI Nearby Galaxy Survey” (THINGS). We detected more than 1000 holes in total in the sampled galaxies. Where they can be ... -
Shock-excited molecular hydrogen in the outflows of post-asymptotic giant branch stars
(University of Hertfordshire, 2014-07-02)Since the identi cation of proto-planetary nebulae (PPNe) as transition objects between the asymptotic giant branch stars and planetary nebulae more than two decades ago, astronomers have attempted to characterise these ...